Re: [PATCH 2/5] x86: PAT: fix ambiguous paranoia check in pat_init()
From: H. Peter Anvin
Date: Wed Jun 11 2008 - 13:36:31 EST
Andreas Herrmann wrote:
For Intel all family 0xf CPUs, and family 6 CPUs starting with model
15 are whitelisted.
Arg, sorry, I read the code brokenly. You're right, of course.
There seem to be other Intel CPUs that advertise PAT support.
See cpuinfo output at http://gentoo-wiki.com/Safe_Cflags
E.g. Pentium M (model 13), Celeron (model 6), Pentium III (model 8).
(Not sure how correct this information is, though)
Yes, those all have PAT enabled.
Turn the white- into a blacklist for those remaining CPUs until they
are verified?
Yes, that would be a suitable course of action; moving it to
Intel-specific code. Then the Intel people can worry about lifting the
remaining blacklisted CPUs.
-hpa
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